[Intel-gfx] [PATCH] drm/i915: Downgrade Gen9 Plane WM latency error

Chris Wilson chris at chris-wilson.co.uk
Thu Jul 26 16:15:27 UTC 2018


According to intel_read_wm_latency() it is perfectly legal for one WM
and all subsequent levels to be 0 (and the deeper powersaving states
disabled), so don't shout *ERROR*, over and over again.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 7312ecb73415..fb37e8e19672 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2942,8 +2942,8 @@ static void intel_print_wm_latency(struct drm_i915_private *dev_priv,
 		unsigned int latency = wm[level];
 
 		if (latency == 0) {
-			DRM_ERROR("%s WM%d latency not provided\n",
-				  name, level);
+			DRM_DEBUG_KMS("%s WM%d latency not provided\n",
+				      name, level);
 			continue;
 		}
 
-- 
2.18.0



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